Patents by Inventor Brian Lee Lawrence

Brian Lee Lawrence has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9373351
    Abstract: A system and method of operating a dual-beam detection system of a holographic data storage disc, including: impinging a data beam on a data layer of the holographic data storage disc; impinging a tracking beam on a tracking element of the holographic data storage disc; detecting a reflection of the tracking beam from the tracking element; and coordinating position of the data beam relative to the tracking beam.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 21, 2016
    Assignee: General Electric Comany
    Inventors: Victor Petrovich Ostroverkhov, Kenneth Brakeley Welles, Brian Lee Lawrence, Xiaolei Shi, Zhiyuan Ren, Mark Cheverton, Ruediger Kusch
  • Patent number: 9164480
    Abstract: Holographic data storage devices are presented. The holographic data storage device includes an optically transparent substrate, wherein the optically transparent substrate includes a photochemically active dye and a heat generating chromophore. Methods for making holographic data storage device are also presented.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: October 20, 2015
    Assignee: General Electric Company
    Inventors: Eugene Pauling Boden, Brian Lee Lawrence, Xiaolei Shi
  • Patent number: 9093082
    Abstract: A data storage device comprises a substrate having oppositely disposed surfaces and a plurality of volumes arranged along tracks between the surfaces; a plurality of micro-holograms each contained in a corresponding one of the volumes; and, at least one groove in at least one of the surfaces and being operative to diffract light through the at least one surface and into the volumes; wherein, the presence or absence of a micro-hologram in a stacked layer in each of the volumes is indicative of a corresponding portion of data stored.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: July 28, 2015
    Assignee: General Electric Company
    Inventors: Pingfan Peter Wu, Brian Lee Lawrence, Zhiyuan Ren, John Erik Hershey, Xiaolei Shi, Kenneth Brakeley Welles, John Anderson Fergus Ross, Victor Petrovich Ostroverkhov
  • Patent number: 8891343
    Abstract: The present techniques present methods and systems for increasing a data reading rate on optical data disks using a single reading head. The methods take advantage of the difference between a mean focal distance (MFD), or minimum spacing that the detector can distinguish between bits, and the minimum separation of bits in a single track to increase the reading speed. As the bits may be more closely spaced across adjacent tracks or layers, these techniques may be used to increase the reading speed of the disk. Specifically, the data symbols that make up a single bit-stream may be stored in a pattern horizontally across adjacent tracks, or vertically across adjacent layers. Accordingly, the focal point of the detector is scanned across the disk in the same pattern to read the individual data symbols.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 18, 2014
    Assignee: General Electric Corporation
    Inventors: John Anderson Fergus Ross, Kenneth Brakeley Welles, John Erik Hershey, Brian Lee Lawrence, Xiaolei Shi, Victor Petrovich Ostroverkhov
  • Patent number: 8808944
    Abstract: A method for storing holographic data, said method comprising: step (A) providing an optically transparent substrate comprising a polymer composition and a light absorbing chromophore, said polymer composition comprising a continuous phase and a dispersed phase, said dispersed phase being less than about 200 nm in size; and step (B) irradiating a volume element of the optically transparent substrate with a holographic interference pattern, wherein the pattern has a first wavelength and an intensity both sufficient to cause a phase change in at least a portion of the dispersed phase within the volume element of the substrate to produce within the irradiated volume element refractive index variations corresponding to the holographic interference pattern, thereby producing an optically readable datum corresponding to the volume element.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: August 19, 2014
    Assignee: General Electric Company
    Inventors: Brian Lee Lawrence, Marc Dubois, Eugene Pauling Boden, William David Richards, Patrick Joseph McCloskey, Azar Alizadeh, Xiaolei Shi
  • Patent number: 8765029
    Abstract: The present invention provides methods for controlling the optical properties of a light transmissive article. The method includes identifying a target window in an Abbe diagram comprising reference polymeric materials. The method further includes selecting a first polymeric material from the reference polymeric materials and compounding the first polymeric material with a stable UV chromophore to provide a first polymer composition. The method further includes transforming the first polymer composition to provide the light transmissive article, wherein the light transmissive article has an Abbe number and a refractive index which falls within the target window. Light transmissive articles prepared using the above methods are also provided.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: July 1, 2014
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Eugene Pauling Boden, Brian Lee Lawrence, Steven James Montgomery, Shreyas Chakravarti, Peter Hendrikus Vollenberg, Edward Kung, Jan Henk Kamps, Lina Prada, John Brian McDermott, Michael Teruki Takemori
  • Patent number: 8703388
    Abstract: Optical data storage media for bit-wise recording of a microhologram using an incident radiation at a wavelength of about 405 nm are provided. The optical storage medium includes (a) a non-photopolymer polymer matrix; (b) a non-linear sensitizer comprising a phenylethynyl platinum complex, wherein the non-linear sensitizer is capable of triplet-triplet energy transfer from an upper triplet state (Tn) of the non-linear sensitizer to a lower triplet state (T1) of a reactant, wherein ā€œnā€ is an integer greater than 1; and (c) a reactant capable of undergoing a chemical change upon the triplet-triplet energy transfer from the non-linear sensitizer, thereby causing a refractive index change in the medium to record the microhologram.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 22, 2014
    Assignee: General Electric Company
    Inventors: Arunkumar Natarajan, Riffard Pierre Jean-Gilles, Kwok Pong Chan, Robert James Perry, Victor Petrovich Ostroverkhov, Evgenia Mikhailovna Kim, Julia Lam Lee, Eugene Pauling Boden, Patrick Joseph McCloskey, Brian Lee Lawrence
  • Patent number: 8507153
    Abstract: There are provided compositions, optical data storage media and methods of using the optical data storage media. The compositions comprise a non-linear sensitizer comprising one or more subphthalocyanine reverse saturable absorbers capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: August 13, 2013
    Assignee: General Electric Company
    Inventors: Arunkumar Natarajan, Kwok Pong Chan, Riffard Pierre Jean-Gilles, Robert James Perry, Victor Petrovich Ostroverkhov, Evgenia Mikhailovna Kim, Julia Lam Lee, Eugene Pauling Boden, Patrick Joseph McCloskey, Brian Lee Lawrence
  • Patent number: 8501371
    Abstract: Methods for storing holographic data are presented. The method includes providing an optically transparent substrate comprising a thermally active photochemically active polymer composition, the polymer composition including a photochemically active dye and a heat generating chromophore, thermally activating at least a part of a volume element of the optically transparent substrate to increase a quantum efficiency of photochemical conversion of the photochemically active dye into a photo-product, within the at least a part of the volume element and converting at least some of the photochemically active dye to a photo-product, and producing concentration variations of the photo-product within the volume element of the optically transparent substrate, thereby producing an optically readable datum corresponding to the volume element.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: August 6, 2013
    Assignee: General Electric Company
    Inventors: Eugene Pauling Boden, Brian Lee Lawrence, Xiaolei Shi
  • Patent number: 8427912
    Abstract: A system and method for controlling tracking in a holographic data storage system, including: impinging a beam on a holographic data disc, wherein the beam is reflected from a micro-hologram disposed within the holographic data disc; detecting the reflected beam from the holographic data disc by a multi-element detector; and analyzing a pattern detected by multi-element detector to generate a tracking error signal.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: April 23, 2013
    Assignee: General Electric Company
    Inventors: Victor Petrovich Ostroverkhov, Brian Lee Lawrence, Xiaolei Shi, Zhiyuan Ren, Zexin Pan
  • Patent number: 8368999
    Abstract: An article includes an optical device. The optical device includes a first prism, a second prism, and a light source. The first prism includes an optically active material that affects a refractive index of at least a portion of the first prism via a photochemical change induced by exposure to different wavelengths of light from the light source.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: February 5, 2013
    Assignee: General Electric Company
    Inventors: Brian Lee Lawrence, John Frederick Graf
  • Patent number: 8345334
    Abstract: A system and method for replicating optical data storage discs (e.g., holographic data storage discs) having multiple layers of data. Master discs providing for respective single layers of data are utilized, and each respective single layer of data from the master discs are replicate onto the optical data storage disc.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: January 1, 2013
    Assignee: General Electric Company
    Inventors: Xiaolei Shi, Kenneth Brakeley Welles, John Erik Hershey, John Anderson Fergus Ross, Brian Lee Lawrence, Zhiyuan Ren, Victor Petrovich Ostroverkhov
  • Patent number: 8254235
    Abstract: A system for processing information is provided. The system includes multiple micro-holograms contained in multiple volumes arranged along multiple tracks in one or more storage mediums. Each of the micro-hologram includes a data. The system also includes one or more pick-up head devices with optical lenses for directing laser beams on the multiple tracks. Further, the system includes a subsystem for arranging the one or more pick-up head devices for recording and retrieving of the data from the one or more storage mediums.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 28, 2012
    Assignee: General Electric Company
    Inventors: Xiaolei Shi, John Erik Hershey, John Anderson Fergus Ross, Brian Lee Lawrence, Xuefeng Wang, Victor Petrovich Ostroverkhov, Erik Solhjell, Rolf Jahren
  • Publication number: 20120163145
    Abstract: Optical data storage media for bit-wise recording of a microhologram using an incident radiation at a wavelength of about 405 nm are provided. The optical storage medium includes (a) a non-photopolymer polymer matrix; (b) a non-linear sensitizer comprising a phenylethynyl platinum complex, wherein the non-linear sensitizer is capable of triplet-triplet energy transfer from an upper triplet state (Tn) of the non-linear sensitizer to a lower triplet state (T1) of a reactant, wherein ā€œnā€ is an integer greater than 1; and (c) a reactant capable of undergoing a chemical change upon the triplet-triplet energy transfer from the non-linear sensitizer, thereby causing a refractive index change in the medium to record the microhologram.
    Type: Application
    Filed: February 27, 2012
    Publication date: June 28, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Arunkumar Natarajan, Riffard Pierre Jean-Gilles, Kwok Pong Chan, Robert James Perry, Victor Petrovich Ostroverkhov, Evgenia Mikhailovna Kim, Julia Lam Lee, Eugene Pauling Boden, Patrick Joseph McCloskey, Brian Lee Lawrence
  • Patent number: 8194520
    Abstract: An optical disc for micro-holographic data storage, including: optically-enabled material configured to store holographic data; guide grooves; a first coating disposed on the guide grooves and configured to reflect a tracking beam and to transmit a read or record beam; and a second coating disposed to cover the guide grooves and disposed on the first coating.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: June 5, 2012
    Assignee: General Electric Company
    Inventors: Xiaolei Shi, Brian Lee Lawrence, Eugene Pauling Boden, Zhiyuan Ren, Mark Cheverton, Victor Petrovich Ostroverkhov
  • Patent number: 8182966
    Abstract: A data storage device including: a plastic substrate having a plurality of volumes arranged in tracks along a plurality of vertically stacked, laterally extending layers therein; and, a plurality of micro-holograms each contained in a corresponding one of the volumes; herein, the presence or absence of a micro-hologram in each of the volumes is indicative of a corresponding portion of data stored.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: May 22, 2012
    Assignee: General Electric Company
    Inventors: Kenneth Brakeley Welles, Zhiyuan Ren, Brian Lee Lawrence, Pingfan Peter Wu, John Erik Hershey, Xiaolei Shi, John Anderson Fergus Ross, Victor Petrovich Ostroverkhov
  • Patent number: 8182967
    Abstract: There are provided optical data storage media and methods of optical data storage using the same. The optical data storage media comprises a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes change upon triplet excitation. The refractive index change (?n) of the medium is at least about 0.005, or even at least about 0.05.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: May 22, 2012
    Assignee: General Electric Company
    Inventors: Arunkumar Natarajan, Eugene Pauling Boden, Kwok Pong Chan, Patrick Joseph McCloskey, Victor Petrovich Ostroverkhov, Evgenia Mikhailovna Kim, David Gilles Gascoyne, Robert James Perry, Riffard Pierre Jean-Gilles, Julia Lam Lee, Brian Lee Lawrence
  • Patent number: 8124299
    Abstract: There are provided compositions, optical data storage media and methods of using the optical data storage. The compositions comprise a non-linear sensitizer comprising one or more platinum ethynyl complexes capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: February 28, 2012
    Assignee: General Electric Company
    Inventors: Arunkumar Natarajan, Riffard Pierre Jean-Gilles, Kwok Pong Chan, Robert James Perry, Victor Petrovich Ostroverkhov, Evgenia Mikhailovna Kim, Julia Lam Lee, Eugene Pauling Boden, Patrick Joseph McCloskey, Brian Lee Lawrence
  • Publication number: 20120033289
    Abstract: An article includes an optical device. The optical device includes a first prism, a second prism, and a light source. The first prism includes an optically active material that affects a refractive index of at least a portion of the first prism via a photochemical change induced by exposure to different wavelengths of light from the light source.
    Type: Application
    Filed: October 5, 2011
    Publication date: February 9, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Brian Lee Lawrence, John Frederick Graf
  • Patent number: 8084168
    Abstract: A data storage device including: a plastic substrate having a plurality of data volumes arranged along tracks in a plurality of stacked layers; a plurality of micro-holograms each contained in a corresponding one of the data volumes; a plurality of complementary volumes, each corresponding to and being substantially aligned with one of the data volumes; a plurality of micro-holograms each contained in a corresponding one of the complementary volumes; wherein, the presence or absence of a micro-hologram in each of the data volumes is indicative of a corresponding portion of data stored; and, the ones of the complementary volumes corresponding to the ones of the data volumes containing a micro-hologram do not contain a micro-hologram; and the ones of the complementary volumes corresponding to the ones of the data volumes not containing a micro-hologram contain a micro-hologram.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: December 27, 2011
    Assignee: General Electric Company
    Inventors: Pingfan Peter Wu, Xiaolei Shi, Zhiyuan Ren, Brian Lee Lawrence, John Erik Hershey, Kenneth Brakeley Welles, John Anderson Fergus Ross, Victor Petrovich Ostroverkhov